North Korea did launch the "satellite" rocket less than half an hour ago, that is had been threatening to do.
Yonha, ROK's news agency, said that it might have actually been carrying a satellite, although it veered eastward so quickly that it was almost certainly not headed for space.
The Taepodong 2 rocket, which could hit Western US if carrying close to nothing (and of the N. Koreans could ever figure out how to use the damn thing), splashed into the Pacific Ocean after crossing Japanese airspace, as is usual.
Japan was ready to shoot it down, and was on high alert to do so. It had threatened multiple times to shoot it down, but for some reason didn't. They may have lost a beat due to trying to be conservative--two false alarms earlier in the week embarrassed the defense ministry. I'm a bit disappointed, to be honest. Shooting the rocket down would have been a clear sign that the Japan-ROK-US bloc was not going to tolerate such brinkmanship anymore. Alas.